<http://schema.org/headline>
"Facial Recognition: The Rule of Threes, Louis E. Grever"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.fbi.gov/file-repository/about-us-cjis-fingerprints_biometrics-biometric-center-of-excellences-grever_facial-recognition-legal-forum-3b.pdf/view>